Specifications

Configuring and Managing the System Log
A-6 Troubleshooting a RoamAbout Switch
Tostopsendingmessagestoasyslogserver,usethefollowingcommand:
clear log server ip-addr
Logging to the Log Buffer
Thesystemlogconsistsofrollingentriesstoredasa last‐infirst‐outqueuemaintainedbythe
RoamAboutSwitch.Loggingtothebufferisenabledbydefaultforeventsattheerrorleveland
higher.
Tomodifysettingstoanotherseveritylevel,usethefollowingcommand:
set log buffer severity severity-level
Forexample,tosetloggingtothebufferforeventsatthewarninglevelandhigher,typethe
followingcommand:
RBT-8100# set log buffer severity warning
success: change accepted.
Toviewlogentriesinthesystemlogbuffer,usethefollowingcommand:
show log buffer [{+|-} number-of-messages] [facility facility-name] [matching
string] [severity severity-level]
Youcandisplaythemostrecentmessagesortheoldestmessages:
•Typeapositivenumber(forexample,+100)todisplaythatnumberoflogentriesstartingfrom
theoldestinthelog.
•Typeanegativenumber(forexample,‐100)todisplaythatnumberoflogentriesstartingfrom
thenewestinthe
log.
Youcansearchforstringsbyusingthekeywordmatchingandtypinganystring,suchasa
usernameorIPaddress.
Youcandisplayeventinformationataparticularseveritylevel.(SeeTable A‐3onpage A‐5for
informationonseveritylevels.)
Forexample,thefollowingcommanddisplaysallmessages
attheerrorseveritylevelorhigher:
show log buffer severity error
SYS Jun 02 17:41:35. 176214 ERROR nos_vms_port?add: Failed to set default
vlan v1 an:4096 for port 3 rc 1
TofiltertheeventlogbyMSSarea,usethefacilityfacility‐namekeyword.Foralistoffacilitiesfor
whichyoucanvieweventmessages,typethefollowingcommand:
show log buffer facility ?
<facility name> Select one of: KERNEL, AAA, SYSLOGD, ACL, APM, ARP, ASO,
BOOT, CLI, CLUSTER, CRYPTO, DOT1X, NET, ETHERNET, GATEWAY, HTTPD, IGMP, IP,
MISC, NOSE, NP, RAND, RESOLV, RIB, ROAM, ROGUE, SM, SNMPD, SPAN, STORE, SYS,
TAGMGR, TBRIDGE, TCPSSL, TELNET, TFTP, TLS, TUNNEL, VLAN, X509, XML, AP,
RAPDA, WEBVIEW, EAP, FP, STAT, SSHD, SUP, DNSD, CONFIG, BACKUP.
Toclearthebuffer,typethefollowingcommand:
clear log buffer
Todisableloggingtothesystembuffer,typethefollowingcommand:
set log buffer disable